在mini2440的SD卡槽上插上一个sdio wifi的设备模块，在检测sdio设备初始化的时候一直提示：s3c-sdi s3c2440-sdi: powered down.
S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics
s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
############ host_clk_div=*1*
############mmc->f_max=*50625000*
s3c-sdi s3c2440-sdi: powered down.
s3c-sdi s3c2440-sdi: mmc0 - using pio, hw SDIO IRQ
s3c-sdi s3c2440-sdi: running at 0kHz (requested: 0kHz).
s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz).
s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz).
s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz).
s3c-sdi s3c2440-sdi: CMD[ERR -110] #2 op:8 arg:0x000001aa flags:0x082f5 retries:
0 Status:nothing to complete
s3c-sdi s3c2440-sdi: CMD[ERR -110] #3 op:5 arg:0x00000000 flags:0x082e1 retries:
3 Status:nothing to complete
s3c-sdi s3c2440-sdi: CMD[ERR -110] #4 op:5 arg:0x00000000 flags:0x082e1 retries:
2 Status:nothing to complete
s3c-sdi s3c2440-sdi: CMD[ERR -110] #5 op:5 arg:0x00000000 flags:0x082e1 retries:
1 Status:nothing to complete
s3c-sdi s3c2440-sdi: CMD[ERR -110] #6 op:5 arg:0x00000000 flags:0x082e1 retries:
0 Status:nothing to complete
s3c-sdi s3c2440-sdi: CMD[ERR -110] #7 op:55 arg:0x00000000 flags:0x08f5 retries:
0 Status:nothing to completeusbcore: registered new interface driver usbhid
s3c-sdi s3c2440-sdi: CMD[ERR -110] #8 op:55 arg:0x00000000 flags:0x08f5 retries:
0 Status:nothing to complete
usbhid: v2.6:USB HID core driver
s3c-sdi s3c2440-sdi: CMD[ERR -110] #9 op:55 arg:0x00000000 flags:0x08f5 retries:
0 Status:nothing to complete
s3c-sdi s3c2440-sdi: CMD[ERR -110] #10 op:55 arg:0x00000000 flags:0x08f5 retries
:0 Status:nothing to complete
Advanced Linux Sound Architecture Driver Version 1.0.21.
s3c-sdi s3c2440-sdi: CMD[ERR -110] #11 op:1 arg:0x00000000 flags:0x08e1 retries:
0 Status:nothing to complete
s3c-sdi s3c2440-sdi: powered down.No device for DAI UDA134X
No device for DAI s3c24xx-i2s
No device for DAI s3c24xx-i2s
UDA134X SoC Audio Codec
asoc: UDA134X <-> s3c24xx-i2s mapping ok
ALSA device list:
#0: S3C24XX_UDA134X (UDA134X)
TCP cubic registered
NET: Registered protocol family 17
s3c2410-rtc s3c2410-rtc: setting system clock to 2012-06-15 10:33:40 UTC (133975
6420)
yaffs: dev is 32505859 name is "mtdblock3"
yaffs: passed flags ""
yaffs: Attempting MTD mount on 31.3, "mtdblock3"
yaffs: auto selecting yaffs2
yaffs: restored from checkpoint
yaffs_read_super: isCheckpointed 1
VFS: Mounted root (yaffs filesystem) on device 31:3.
Freeing init memory: 156K
[15/Jun/2012:02:33:43 +0000] boa: server version Boa/0.94.13
[15/Jun/2012:02:33:43 +0000] boa: server built Jul 26 2010 at 15:58:29.
[15/Jun/2012:02:33:43 +0000] boa: starting server pid=693, port 80
Try to bring eth0 interface up......eth0: link down
谁能告诉我这到底是什么原因呢，我插上SD卡的话mini2440就能很好的工作，插上另外一个型号的sdio wifi模块也是能正常的工作，请问这是硬件问题吗，如果是软件问题为什么有的sdio就可以很好的检测到呢
求解求思路啊？？？
